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Columbite-(Fe)

#53649
SOLD
Columbite-(Fe) from Amelia Court House, Amelia Co., Virginia, United States - 53649
Columbite-(Fe) from Amelia Court House, Amelia Co., Virginia, United States - 53649

Columbite-(Fe)

#53649
Availability
Sold
Size
3.2 x 1.9 x 1.2 cm - Miniature 
Formula
Fe2+Nb2O6 (RRUFF)
Locality
Amelia Court House, Amelia Co., Virginia, United States

Terminated, good, black crystal. 

Columbite-(Fe)

Formula
Fe2+Nb2O6 
Crystal System
Orthorhombic 
Crystal Habit
Massive - Granular, Striated 
Cleavage
Distinct, None, None 
Luster
Sub Metallic 
Color
black, brownish black 
Streak
blackish brown 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness
6 

Data courtesy of Webmineral.

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